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SageMath
E = EllipticCurve("bc1")
E.isogeny_class()
Elliptic curves in class 481338.bc
sage: E.isogeny_class().curves
LMFDB label | Cremona label | Weierstrass coefficients | j-invariant | Discriminant | Torsion structure | Modular degree | Faltings height | Optimality |
---|---|---|---|---|---|---|---|---|
481338.bc1 | 481338bc2 | \([1, -1, 0, -1363137, 613093949]\) | \(-117615821673598875/40164914816\) | \(-95658488217122688\) | \([]\) | \(9144576\) | \(2.2299\) | \(\Gamma_0(N)\)-optimal* |
481338.bc2 | 481338bc1 | \([1, -1, 0, 9663, 3149757]\) | \(30541139380125/1331551010816\) | \(-4350177152335872\) | \([]\) | \(3048192\) | \(1.6805\) | \(\Gamma_0(N)\)-optimal* |
Rank
sage: E.rank()
The elliptic curves in class 481338.bc have rank \(1\).
Complex multiplication
The elliptic curves in class 481338.bc do not have complex multiplication.Modular form 481338.2.a.bc
sage: E.q_eigenform(10)
Isogeny matrix
sage: E.isogeny_class().matrix()
The \(i,j\) entry is the smallest degree of a cyclic isogeny between the \(i\)-th and \(j\)-th curve in the isogeny class, in the LMFDB numbering.
\(\left(\begin{array}{rr} 1 & 3 \\ 3 & 1 \end{array}\right)\)
Isogeny graph
sage: E.isogeny_graph().plot(edge_labels=True)
The vertices are labelled with LMFDB labels.